Republicans are starting to look chipper about November, and with good reason

American voters have been in a bad mood lately. They don't think highly of the President's performance. They aren't crazy about the war. They certainly don't like the G.O.P.-led Congress--a New York Times poll last week put its approval rating at just 25%. And while disapproval of Congress as a whole isn't rare, polls are finding that more and more voters are dissatisfied with their own lawmakers--a more telling phenomenon. The Democrats hope that come Election Day, this perfect storm of discontent will stir a giant wave to sweep the G.O.P. out of the majority. In a recent presentation to top...